The shuttle stallion, 15, was to begin another Southern Hemisphere breeding season at Haras La Quebrada in Buenos Aires when he was stricken. Indygo Shiner, a son of A.P. Indy, stood the Northern Hemisphere season at Hill 'n' Dale.

Out of the grade III winner Navarra, by El Gran Senor, Indygo Shiner was bred in Kentucky by Summer Wind Farm. He won the 2001 Jefferson Cup (gr. IIIT) at Churchill Downs, one of four victories during a 12-race career that included three graded stakes placings and earnings of $444,066. His dam is a full sister to Juddmonte blue hen broodmare Toussaud.

"We are all very sad to lose this promising sire and member of our stallion roster," said John G. Sikura, president of Hill 'n' Dale Farms, in a brief statement.